MorningStar SureSine 300 Watt Inverter


The SureSineinverter has been developed using Morningstar’s power electronics expertise and 25 years of experience with remote off-grid photovoltaic (PV) systems. This product is a pure sine wave inverter designed specifically to meet the needs of rural PV electrification requiring AC power including solar home systems, schools,community centers and health clinics. This inverter is also a good choice for small PV systems for telecom, remotecabins and weekend homes, and RV/caravans and boats.The SureSine’s combination of performance, features and competitive price provides the best small inverter value on the market. It is highly reliable, having no internal cooling fan or other moving parts prone to failure.

Improved Load Operation

Pure Sine Wave – Provides quality AC equivalent to gridpower. A sine wave will extend the life of the householdappliances (lights, TV, fans) and improve load performance.
Toroidal transformer design – Generates good wave formthroughout the range of input voltages.
Outstanding Surge Capability – Handles a 200% surgeduring load start-up, to a maximum of 600 watts.

More Power Available

High Efficiency – A high peak efficiency will reduce heatingand make more solar energy available for powering loads.
Low Self-Consumption – The SureSine consumes 450mAwhile powering loads. During no load conditions, solarenergy is not wasted because the SureSine automaticallypowers down to stand-by mode, reducing self-consumptionto one tenth of operating consumption.

Extremely High Reliability

Extensive Electronic Protections – The SureSine hasextensive electronic protections that will automaticallyprotect against faults and user mistakes such as short circuit,overload, high temperature and low voltage disconnect.Recovery from most faults is automatic.
No Internal Cooling Fan – A key design objective sincefans often fail in harsh environments and are noisy, consumepower and blow dirt into the electronics.
Tropicalization – The SureSine uses epoxy encapsulation,conformal coating, stainless steel hardware, and ananodized aluminum enclosure to protect against harshtropical and marine environments.

Other Features

More Information – The two LEDs provide importantinformation to the user about system status and any faultconditions. An optional digital meter may be connected to the SureSine to display additional system information.
Remote On/Off – Improves safety by making it easy toinstall the SureSine in an inaccessible location or enclosure.Reduces system cost by avoiding the need to add an ACsafety disconnect to the system.
Adjustability – Four DIP switches provide easy adjustabilityof several system parameters. Additional adjustability ispossible via RJ-11 to RS-232 adapter to a personalcomputer and using Morningstar’s PC software.

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  • Model: SI-300-115V
  • Manufactured by: MorningStar

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